Okay thanks everyone for the help and fast replies.

Quote Originally Posted by zanthor View Post
Before Northrend you'll be fine. In northrend you'll run into memory issues.

Outlands may have some memory issues, not as many as northrend.

If you upgrade to a 64 bit OS you'll likely immediately see 4gb of ram instead of 3.4 (since I can't think of a config to get to 3.4) which would help everywhere. You'll likely run into problems getting Linux to multibox with most multicasters, though i've heard of it being done.

One thing I find amusing is the specs you listed used to be the zomgtopend multiboxing specs...
Yeah I'll only be using one pc for a while. So I'll get myself Windows XP 64 Bit or Windows 7.
After doing that I'll get some trial accounts set up to check everything.